it's from the ntsb and federal aviation administration. the pilot brought the plane down after cockpit instruments indicated smoke and battery related problems. the main battery installed under the cockpit had burned. the official said it may have overheated due to excess current. japanese and u.s. investigators will examine the main battery and surrounding electrical network. they expect a safety switch designed for overheating may have failed. this is the latest in a spate of incidents. >>> japanese transportation officials inspecting boeing dreamliners say they've identified problems with a fuel control system on another plane. the 787 suffered a fuel leak on sunday near tokyo days after a similar incident in boston. in both instances fuel spilled from two nozzles located on the left wing. the devices are meant to release excess fuel from the tanks. in the latest incident, pilots said a display in the cockpit indicated valves adjusting the flow of fuel were closed when they were actually opened. investigators have now identified a defec